Lewiston Maine Climate Data

Monthly Average Climate Data for Lewiston Maine

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.6 °F29.5 °F3.19 in.
February12.2 °F32.4 °F3.18 in.
March22.2 °F40.9 °F3.72 in.
April33.3 °F53.2 °F4.31 in.
May44.1 °F65.3 °F3.44 in.
June53.9 °F74.0 °F4.47 in.
July59.6 °F80.0 °F3.56 in.
August58.3 °F78.9 °F3.32 in.
September50.6 °F71.4 °F3.81 in.
October39.5 °F58.3 °F5.02 in.
November29.6 °F46.3 °F4.08 in.
December19.1 °F35.7 °F4.32 in.
Annual36.1 °F55.5 °F46.42 in.

Climate Data for Lewiston Maine

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
2024 plantmaps.com